Burner



Dec s l J. W. PROSSER BURNER Filed August 5, 1922 Patented Dec. 14, 1926.

UNITED vs'rAri-:s

i 1,511,061 .PATENT oFF-ics.

JOSEPH W. PROSSER, F NEW YORK, '.N'; Y., ASSIGNOE. BY MESNE ASSIGNMENTS, TO

PELIROLIETUMv .COMBUSTION' 0F YORK.

conroaaTIoN, or NEW Ycax, N.v Y., A conroiwrroN BuaNEa.

Application mea Aagust s, 1922. serial No. s'zassi.

burner whereby very complete combustion is obtained. A further object of my invention is to provide amixer or burner head l whereby liquid fuel is thoroughly atomized and vaporized and whereby the component parts of the ignitable mixture are eiiciently and thoroughly intermixed and discharged,"

and the discharged mixture, when ignited, 90 produces intense heat and' very complete combustion. Another object ofmy invention is to provide such a burner head or mixer of simple and durable construction, and one which comprisesla plurality of coms ponent parts removably associated together so that the head maybe easily taken apart for cleaning or replacement of one or more of the parts. Other objects of my invention will be in part obvious and in part pointed 3o out hereinafter.

In accordance with my invention, the combustible mixture created by my improved burner consists of a mixture of vaporized fluid fuel and superheated gaseous matter. a5 The burner comprises a suitable lretort disposed in front of a burner head or mixer so as to be heated by the flame produced at the burner head, to produce the steam for the head -and also, if desired, to vaporize the Huid fuel' therefor. In a preferred form, the mixing head is arranged to provide two separate steam jets. One jet is of the Siphon vtype and operates to siphon fluid fue] into the head, to atomize and vaporize the fuel, if liquid, and to intermix the fuel with the steam of this jet. The other steamv jet is of the annular, vacuum type and discharges adjacent the discharge opening of the mixer. This jet operates to draw the mixture produced bythe rst jet to this opening and to intermix there the steam of the vacuum jet with the mixture produced by the first jet to produce the fina Acombustible mixture which .is discharged by the head This final mixture, when ignited, produces intense heat '85 and its combustion is practically perfect.

In order that a clearer understanding of my invention may be had, attention is hereby directed to the accompanying drawings forming a partV of this application and illusotrating one possible' embodiment of my invention. Referring to the drawings, Fig. 1 shows diagrammatically and in side elevation, a fuel'burner embodying my invention; Fig; 2 is a diagrammatic top plan view of 65 the combined steam and fuel coils; Fig. 3 is'a vertical section of the mixing head; Flg. 4 is a vertical section of the mixing head, and is taken on the line 4 4 of Fig. 3, and Fig. 5 is a vertical section of the mixing 70 head and is taken on the line 5.5 of Fig. 3. Similar reference characters refer to simllar parts throughout the several views of the drawings. 4

Referring to the drawings, pipe 1 leads 75 from a suitable source of water supply, not shown, through valve 2, which may be of the pressure regulating type, if desired, irst into retort 3, wherein the wateris converted into st eam. Retort 3, as shown, may consist of piping coiled to form an outer helix-4,1m inner and reversely wound-helix 5, within helix 4, vertical pipe 6 and a spiral plate coil 7 'disposed below the helixes 4 and 5. The lower end of helix 4 is connected'with 85 lthe upper end of helix 5 by means of pipe 8,

andthe end of plate coil 7 is connected by pipe 9 to the steam inlet opening 10 of the mixing head 11.

Pipe 12 leads from a suitable source of 90 fluid fuel supply, not shown, through valve 13,to the fuel inlet opening l14 of the mixing head 11. e

The fuel may be conducted directly to the head without heating, or, if it is desired to heat the fuel before it reaches the head the fuel may be conducted through a pipe 15 which enters the plate coil 7 ofthe retort at 16, and leaves the coil 7 at 17.

Retort 3 is positioned so that the fiame 18 100 of the mixing head will playupon it'to vaporize the water and to heat the fuel, the heating of the fuel, however, being accomplished indirectly through the intervention of the pipes of and steam in plate coil 7 The mixing head 11 is' arranged to provide adjacent the steam inlet opening 10, a chamber 19 frpm' which steam' ows inV a-jet through and from tapered central passage 20, through small -.chamber 21 into central passage 22. Head l1 also provides an annular chamber 2,3 in open commumcatlon with fuel inlet opening 14 and with chamber 21 so that as the jet of steam p asses through chamber 21. into passage 22 1t s1 phons fuel into the head and to chamber 21, and operates to atomize and vaporlze tl 11s fuel and to mix it with the steam of the jet and to impel the mixture into and through passage 22 which leads to the dlscharge opening` 24 of head 11. Head 11 also provides passageways 25 and 26 whlch direct steam from chamber 19 into an annular passageway 27 Vwhich bypasses and surrounds p assage 22 and opens at the discharge openmg 24 of head 11. The highly heated steam product is emitted from passage 27 in an annular jet which tends to draw. the mixture in passage 22 to the discharge. opening 24 and mixes therewith to produce a combustible mixture emitting from the head 11 in a stream, which, when ignited, produces the flame 18 of the burner. V

The mixing head may be constructed by detachably assembling together a plurality of component parts. In a preferred form the head 11 includes an annular central member 28, provided with a rearwardly extending annular boss 29, having exterior threads 30 engaged by interior threads 31 of a cupshaped, rear cap member 32. Thesteam 1nlet opening 10 is formed at the rear of member 32. Boss 29 of member 28 has interior threads 33 which engage threads 340i an yinterior nozzle 35 which extends within the v 38 thereon extend rearwardly and engage the interior threads 41 on the forward part of member 28. Member 28 and boss 39 of member 40 are provided, respectively, with the aligned axial passageways 25 -and 26.A

Nozzle 36 and tube 40 extend to and are open at the discharge opening 24 of head 11 and cooperate to provide the annular steam passage 27 leading thereto.

The manner in which the steam and fuel f iiowv through the head, become mixed therein, and are emitted as a combustible mixture has been described above, and from the foregoing the operation of the burner will be readily apparent.

The burner may be started in operation in any one of several well known ways, as applying a torch to retort 3 until the burner roduces an ignitable mixture. When the without departing from the scope thereof,

it is intended that all matter contained in the above description or shown in the ,accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

What I claim is l 1. A burner comprising` a central head portion having an exteriorly threaded boss projecting from the rear of the same and an internally threaded socket in the front of the same, an internally threaded cap engaged over said boss and provided with an inlet for superheated steam products, a nozz.e entered in the back of said head portion and nprojecting through the front thereof, `said head portion having an open front chamber in the front of the same surroundmg the projecting portion of said nozzle, said chamber having a fuel inlet in one side of the same, a mixing tube having an exteriorly threaded boss at the base of the same engaged in the interiorly threaded socket of the head portion, said boss providing a closure to the open front of the fuel chamber and serving to position the bore of the mixing tube in front of and in line with the nozzle, an exteriorly threaded nozzle interiorly threaded at its rear end and engaged over the externally threaded boss of the mixing tube to form an annular chamber about the' mixing tube` terminating in an annular jet at the mouth of the mixing tube.

2. A burner comprising a central head portlon having an'exteriorly threaded boss projecting from the rear of the `same and an internally threaded socket in the front of the same, an internally threaded cap engaged over said boss and provided with an inlet for superheated steam roducts, a nozzle enteredin the back of sai head portion and projecting throughthe front thereof, said headportion having an open front chamber in the front of the samesurroundmg the projecting portion of said nozzle, said chamber havin a fuel inlet in one side of the same, a vmixing tube having an exteriorly threaded lboss at the base of the same engaged 'in the. interiorly threaded socket of the head portion, said boss providing a closure to the open front of the fuel chamber and serving to position the bore of the mixing tube in front` of and inline with the nozzle, an exteriorly threaded nozzle interiorly threaded at its rear end and engaged over the externally threaded boss of the mixing tube to form an annular chamber about the mixing tube terminating in an annular jet at the mouth of the mixing tube, the central head portion having a passage extending through the rearwardly projecting boss into the socket in the front of the head member and the boss in the mixing tube having a passage therethrough in communication with sait first passage.

3. A burner comprising a central head portion having an exteriorly threaded boss projecting from the rear of the same and an internally threaded socket in the front of the same, an internally threaded cap engaged over said boss and provided with an inlet for super-heated steam products, a nozzle entered in the back of said head portion and projecting through the front thereof, said head portion having an open front chamber'in the front of the saine surrounding the projecting portion of said nozzle, said chamber having a fuel inlet in one side of the same, a mixing tube having an exteriorly threaded boss at the base of the Asamev engaged in the interiorly threaded v gaged yover the externally threaded boss of the mixing tube to form an annular chainber about the mixing tube terminating in an annular jet at the mouth of the mixing tube, a retort coil supported with its convolutions inclined to the horizontal, water supply connections to one end yof said coil and a connection from the other end of the coil to the end cap of the burner head arranged to position the burner with the flame issuing therefrom, directed against the inclined convolutions of the coil.

JOSEPH W. PROSSER. 

